I’m a big fan of TechMeme, a web aggregation service that provides, at a glance, a few of what’s being discussed in the technology-focused part of the blogosphere. It has allowed me to unsubscribe from a large number of RSS feeds that were providing me with redundant information and I’ve long hoped for a version of TechMeme that would provide me with a customized view that providing a similar user interface for my own personal feeds. Recently, though, TechMeme has gotten me thinking about the tech blogosphere conversations as a whole and their longer term relevance. To the small “web 2.0″ community, TechMeme serves as a bit of a paper of record; The subhead even claims that it represents the “Tech Web, page A1″, claiming to bring us the important stories. But how do those stories fare over time? Is today’s hot topic a step in understanding a longer term trend or is it just a temporary distraction that will be forgotten a month/3 months/6 months/a year from now. Fortunately, Gabe Rivera, the founder of TechMeme must have anticipated such a question and provided a way to look at TechMeme as it was a particular point in its short history….